Simplify a few elses

Mostly just dropping them after returns.

F-Droid/src/org/fdroid/fdroid/installer/PrivilegedInstaller.java

@@ -150,11 +150,10 @@ public class PrivilegedInstaller extends Installer {
         }
 
         boolean hasPermissions = returnBundle.getBoolean("has_permissions", false);
-        if (hasPermissions) {
+        if (!hasPermissions) {
-            return IS_EXTENSION_INSTALLED_YES;
-        } else {
             return IS_EXTENSION_INSTALLED_PERMISSIONS_PROBLEM;
         }
+        return IS_EXTENSION_INSTALLED_YES;
     }
 
     @Override

F-Droid/src/org/fdroid/fdroid/localrepo/type/BluetoothSwap.java

@@ -34,13 +34,12 @@ public final class BluetoothSwap extends SwapType {
         BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
         if (adapter == null) {
             return new NoBluetoothType(context);
-        } else {
+        }
         if (mInstance == null)
             mInstance = new BluetoothSwap(context, adapter);
 
         return mInstance;
     }
-    }
 
     private BluetoothSwap(@NonNull Context context, @NonNull BluetoothAdapter adapter) {
         super(context);

F-Droid/src/org/fdroid/fdroid/net/AsyncDownloaderFromAndroid.java

@@ -345,9 +345,8 @@ public class AsyncDownloaderFromAndroid implements AsyncDownloader {
 
                 if (status == DownloadManager.STATUS_SUCCESSFUL) {
                     return 0; // Download is valid, celebrate
-                } else {
-                    return c.getInt(c.getColumnIndex(DownloadManager.COLUMN_REASON));
                 }
+                return c.getInt(c.getColumnIndex(DownloadManager.COLUMN_REASON));
             }
         } finally {
             c.close();

F-Droid/src/org/fdroid/fdroid/net/DownloaderFactory.java

@@ -41,11 +41,11 @@ public class DownloaderFactory {
         if (isBluetoothAddress(url)) {
             String macAddress = url.getHost().replace("-", ":");
             return new BluetoothDownloader(context, macAddress, url, destFile);
-        } else if (isOnionAddress(url)) {
-            return new TorHttpDownloader(context, url, destFile);
-        } else {
-            return new HttpDownloader(context, url, destFile);
         }
+        if (isOnionAddress(url)) {
+            return new TorHttpDownloader(context, url, destFile);
+        }
+        return new HttpDownloader(context, url, destFile);
     }
 
     private static boolean isBluetoothAddress(URL url) {
@@ -60,9 +60,8 @@ public class DownloaderFactory {
             throws IOException {
         if (canUseDownloadManager(url)) {
             return new AsyncDownloaderFromAndroid(context, listener, title, id, url.toString(), destFile);
-        } else {
-            return new AsyncDownloadWrapper(create(context, url, destFile), listener);
         }
+        return new AsyncDownloadWrapper(create(context, url, destFile), listener);
     }
 
     static boolean isOnionAddress(URL url) {

F-Droid/src/org/fdroid/fdroid/net/WifiStateChangeService.java

@@ -221,14 +221,13 @@ public class WifiStateChangeService extends Service {
     private String formatIpAddress(int ipAddress) {
         if (ipAddress == 0) {
             return null;
-        } else {
+        }
         return String.format(Locale.ENGLISH, "%d.%d.%d.%d",
                 ipAddress & 0xff,
                 ipAddress >> 8 & 0xff,
                 ipAddress >> 16 & 0xff,
                 ipAddress >> 24 & 0xff);
     }
-    }
 
     private String printWifiState(int wifiState) {
         switch (wifiState) {

F-Droid/src/org/fdroid/fdroid/net/bluetooth/BluetoothServer.java

@@ -234,14 +234,12 @@ public class BluetoothServer extends Thread {
                     if (f.canRead()) {
                         // No index file, list the directory if it is readable
                         return createResponse(NanoHTTPD.Response.Status.NOT_FOUND, NanoHTTPD.MIME_HTML, "");
-                    } else {
+                    }
                     return createResponse(NanoHTTPD.Response.Status.FORBIDDEN, NanoHTTPD.MIME_PLAINTEXT,
                             "FORBIDDEN: No directory listing.");
                 }
-                } else {
                 return respond(headers, uri + indexFile);
             }
-            }
 
             Response response = serveFile(uri, headers, f, getMimeTypeForFile(uri));
             return response != null ? response :

F-Droid/src/org/fdroid/fdroid/net/bluetooth/httpish/Request.java

@@ -75,13 +75,11 @@ public final class Request {
         if (method.equals(Methods.HEAD)) {
             Utils.debugLog(TAG, "Request was a " + Methods.HEAD + " request, not including anything other than headers and status...");
             return new Response(responseCode, headers);
-        } else {
+        }
         Utils.debugLog(TAG, "Request was a " + Methods.GET + " request, so including content stream in response...");
         return new Response(responseCode, headers, connection.getInputStream());
     }
 
-    }
-
     /**
      * Helper function used by listenForRequest().
      * The reason it is here is because the listenForRequest() is a static function, which would

F-Droid/src/org/fdroid/fdroid/privileged/install/InstallExtension.java

@@ -49,11 +49,11 @@ abstract class InstallExtension {
     public static InstallExtension create(final Context context) {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
             return new LollipopImpl(context);
-        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
-            return new KitKatToLollipopImpl(context);
-        } else {
-            return new PreKitKatImpl(context);
         }
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+            return new KitKatToLollipopImpl(context);
+        }
+        return new PreKitKatImpl(context);
     }
 
     final void runInstall(String apkPath) {

F-Droid/src/org/fdroid/fdroid/privileged/views/AppSecurityPermissions.java

@@ -101,7 +101,7 @@ public class AppSecurityPermissions {
             if (icon != 0) {
                 // return loadUnbadgedIcon(pm);
                 return loadIcon(pm);
-            } else {
+            }
             ApplicationInfo appInfo;
             try {
                 appInfo = pm.getApplicationInfo(packageName, 0);
@@ -110,7 +110,6 @@ public class AppSecurityPermissions {
             } catch (NameNotFoundException e) {
                 // ignore
             }
-            }
             return null;
         }
 

F-Droid/src/org/fdroid/fdroid/views/fragments/ThemeableListFragment.java

@@ -28,14 +28,13 @@ public abstract class ThemeableListFragment extends ListFragment {
     private View headerView;
 
     private View getHeaderView(LayoutInflater inflater, ViewGroup container) {
-        if (getHeaderLayout() > 0) {
+        if (getHeaderLayout() == 0) {
+            return null;
+        }
         if (headerView == null) {
             headerView = inflater.inflate(getHeaderLayout(), null, false);
         }
         return headerView;
-        } else {
-            return null;
-        }
     }
 
     private LayoutInflater getThemedInflater(Context context) {